export default {
  getOsInfo: function () {
    let userAgent = navigator.userAgent.toLowerCase()
    let name = 'Unknown'
    let version = 'Unknown'
    if (userAgent.indexOf('win') > -1) {
      name = 'Windows'
      if (userAgent.indexOf('windows nt 5.0') > -1) {
        version = 'Windows 2000'
      } else if (userAgent.indexOf('windows nt 5.1') > -1 || userAgent.indexOf('windows nt 5.2') > -1) {
        version = 'Windows XP'
      } else if (userAgent.indexOf('windows nt 6.0') > -1) {
        version = 'Windows Vista'
      } else if (userAgent.indexOf('windows nt 6.1') > -1 || userAgent.indexOf('windows 7') > -1) {
        version = 'Windows 7'
      } else if (userAgent.indexOf('windows nt 6.2') > -1 || userAgent.indexOf('windows 8') > -1) {
        version = 'Windows 8'
      } else if (userAgent.indexOf('windows nt 6.3') > -1) {
        version = 'Windows 8.1'
      } else if (userAgent.indexOf('windows nt 6.2') > -1 || userAgent.indexOf('windows nt 10.0') > -1) {
        version = 'Windows 10'
      } else {
        version = 'Unknown'
      }
    } else if (userAgent.indexOf('iphone') > -1) {
      name = 'Iphone'
    } else if (userAgent.indexOf('mac') > -1) {
      name = 'Mac'
    } else if (userAgent.indexOf('x11') > -1 || userAgent.indexOf('unix') > -1 || userAgent.indexOf('sunname') > -1 || userAgent.indexOf('bsd') > -1) {
      name = 'Unix'
    } else if (userAgent.indexOf('linux') > -1) {
      if (userAgent.indexOf('android') > -1) {
        name = 'Android'
      } else {
        name = 'Linux'
      }
    } else {
      name = 'Unknown'
    }
    let os = {
      name: name,
      version: version
    }
    return os
  }
}
